4644643231 has 8 divisors (see below), whose sum is σ = 4852237824. Its totient is φ = 4440659160.

The previous prime is 4644643229. The next prime is 4644643247. The reversal of 4644643231 is 1323464464.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4644643231 - 2¹ = 4644643229 is a prime.

It is a super-2 number, since 2×4644643231² = 43145421486548238722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4644643291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 900001 + ... + 905146.

It is an arithmetic number, because the mean of its divisors is an integer number (606529728).

Almost surely, 2^4644643231 is an apocalyptic number.

4644643231 is a deficient number, since it is larger than the sum of its proper divisors (207594593).

4644643231 is a wasteful number, since it uses less digits than its factorization.

4644643231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805261.

The product of its digits is 165888, while the sum is 37.

The square root of 4644643231 is about 68151.6194305022. The cubic root of 4644643231 is about 1668.4663548052.

The spelling of 4644643231 in words is "four billion, six hundred forty-four million, six hundred forty-three thousand, two hundred thirty-one".